题解 | #插入记录(二)#
插入记录(二)
https://www.nowcoder.com/practice/9681abf28745468c8adacb3b029a18ce
insert into exam_record_before_2021 (
uid,
exam_id ,
start_time ,
submit_time ,
score
)
select
uid,
exam_id ,
start_time ,
submit_time ,
score
from exam_record
where substr(submit_time,1,4) < '2021'
/*SQL*/;